Reflections on 2 years of CPython's JIT Compiler: The good, the bad, the ugly

this sounds so different from rubys new JIT that - i think - came in around the same time and is bringing huge performance benefits.

team size sounds similar but it's mostly full time people from shopify and other interested parties (see https://railsatscale.com/2025-01-10-yjit-3-4-even-faster-and... and similar)